Site Survey Tool - TamoGraph

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System Requirements
Differences between the Windows and macOS Versions
Driver Installation - Microsoft Windows
Wi-Fi Capture Engine Installation - macOS
Licensing and Trial Version Limitations
Interface Overview
Access Point List
Floor Plan / Site Map
Plans and Surveys, Properties, and Options Panel
Main Menu
Spectrum and Networks Panel
Performing a Site Survey
New Project Wizard
Adapter Signal Level Correction
Data Collection
Understanding Survey Types: Passive, Active, and Predictive
Active Survey Configuration
Best Practices, Tips, and Tricks
Survey Job Splitting
RF Predictive Modeling
Drawing Walls and Other Obstructions
Drawing Attenuation Zones
Copying, Pasting, and Deleting Multiple Objects
Undo and Redo
Virtual APs Placement Methods
Manual Placing and Configuring Virtual APs
Antenna Selection
Creating Vendor-Specific AP Presets
Automatic Placing and Configuring Virtual APs
Reconfiguring Virtual APs
Applying Visualizations
Working with Multi-floor Sites
Mixing Real and Virtual Data
Best Practices, Tips, and Tricks
Analyzing Data – Passive Surveys and Predictive Models
Selecting Data for Analysis
Adjusting AP Locations After Passive Surveys
Splitting an AP into Multiple Unique APs
Working with Multi-SSID APs
Visualization Types
Signal Level
Signal-to-Noise Ratio
AP Coverage Areas
Signal-to-Interference Ratio
Number of APs
Expected PHY Rate
Frame Format
Channel Bandwidth
Channel Map
Analyzing Data – Active Surveys
Selecting Data for Analysis
Visualization Types
Actual PHY Rate
TCP Upstream and Downstream Rate
UDP Upstream and Downstream Rate
UDP Upstream and Downstream Loss
Round-trip Time
Associated AP
Spectrum Analysis
Hardware Requirements
Spectrum Data Graphs
Performing Spectrum Analysis Surveys
Viewing Collected Spectrum Data
Exporting Spectrum Data
Reporting and Printing
Customizing Reports
Google Earth Integration
Configuring TamoGraph
Plans and Surveys
Plan / Map
Client Capabilities
Colors and Value Ranges
AP Detection and Placement
Visualization Settings
Tips Panel
Configuring GPS Receiver
Using GPS Configuration Dialog
Finding the GPS Receiver Port Number
Taking Photographs
Voice Control
Using TamoGraph in a Virtual Machine
Command-Line Options
Frequently Asked Questions
Sales and Support

Splitting an AP into Multiple Unique APs

Sometimes, passive pre-deployment site surveys are performed by moving about a single AP and testing coverage every time you change the AP location. This method is often referred to as “AP-on-a-stick.” The purpose of this method is to find good locations for future AP installations and to estimate expected coverage (or, sometimes, to find the best location for only one AP).

If you perform such surveys using one floor plan, the results will not be ideal because TamoGraph assumes that your AP location is fixed; it will place only a single AP icon in the estimated location and the coverage calculations will be based on that estimated location. This is not what you want when you perform AP-on-a-stick surveys; you probably want TamoGraph to treat your test AP as a unique physical device in each of the surveys conducted.

To address this problem, we suggest one of the following solutions (we recommend the second solution):

1. You can add multiple copies of the same floor plan to the project. Every time you move the test AP to a new location, perform a survey using a new copy of the floor plan. By doing so, you will obtain completely independent coverage results for each new location. The drawback of this method is that you will not be able to see cumulative coverage visualization on a single floor plan.

2. You can perform all the surveys using the same floor plan. During a typical “AP-on-a-stick” survey, you would take the following steps:

a)Choose a location for the future installation of your first AP.

b)Place your “AP-on-a-stick” in that location.

c)Perform a single, full survey of the coverage area. If a single survey is impossible (i.e., if you have to stop and make several surveys for a single AP placement), be sure to merge such surveys before moving on.

d)Choose a location for the future installation of your second AP and repeat this cycle for the second, third, fourth, etc. AP.

When you have completed the testing cycle (new AP location – new survey – new AP location – new survey…), all of your surveys will contain data for only one AP with a single MAC address. That is not what you want. What you want is to split a single physical AP into multiple copies, one copy per survey. All AP copies will be assigned new, unique MAC addresses, and, therefore, TamoGraph will treat them as independent APs. To do that, select your test AP on the left panel, right-click on it, and then select Advanced => Split. This will display a dialog window in which you can select two or more surveys that you performed using the AP-on-a-stick method. Click OK to complete the operation. If you have a dual-band AP, you will need to perform this split operation twice, once for each band.

After the split, new APs are given new names and new MAC addresses. For example, if the original AP name is “Cisco 802.11n” and the original MAC address is 00:23:04:88:C6:90, and if your performed three surveys in three different locations, the new APs would be named "Cisco 802.11n – Copy 1," "Cisco 802.11n – Copy 2,"  and "Cisco 802.11n – Copy 3," and their MAC addresses would be 00:23:04:88:C6:91, 00:23:04:88:C6:92, 00:23:04:88:C6:93, respectively.

Once you split the AP into multiple independent, unique APs, you can adjust AP icon locations to reflect their actual positions, as described in the previous chapter, and apply any visualization to the selected surveys.

Note that this operation cannot be undone, so you may want to save a backup copy of the project file prior to performing this operation.